Improvement in fire-place stoves



UNITEnS'rATEs PATENT, OFF oE.

MICHAEL M'QNAMARA, OF BUFFALO, NEVV' YORK.

"lMPROJVEMENT IN FIRE-PLACE STO'VES.

Specification forming part of Letters Patent No. 208,028, datedSeptember 17, 1878; application filed December 14, 1877.

To all whom it may concern:

Be it known that I, lVIICHAEL MONAMARA, of the city of Buffalo, in thecounty of Erie and State of New York, have invented certain new anduseful Improvements in Fire- Place Stoves, which improvements are fullyset forth in the following specification and accompanying drawing, inwhichv Figure l is a front elevation Fig. 2, a side elevation; Fig. 3, aplan or top View; Fig. 4, a vertical longitudinal section through line XX, Fig. 3. Fig. 5 represents a cross-section through line Y Y, Fig. 2;and Fig. 6 is a plan of the plate for supporting the bottom of the shorttubes, and a top view of the fire-box with bility of parts exposed tothe fire.

In said drawings, A represents the outer casing of the heater or stove,inclosing the upper fire chamber and lower airchamber, divided by aplate, as described hereinafter. B, the front plate or casing, which ismade removable, and arranged so as to be readily fastened in place ordisconnected when required, and so as to leave a space, I), for themantel-piece.

The body of the furnace is divided by a semicircular plate, 0, Fig. 6,at or about the point a. (Shown by dotted lines in Figs. 1, 2, and 4.)The short pipes or flues 0, are connected at the bottom, in anywell-known way, to this plate at the opening 0, Fig. 6, the upper endsof the pipes being fastened to the top of the stove in a similar manner.0 represents the curved or bent pipes, arranged at the front of theheater, back of the plate B. They are fastened at the bottom to theplate (3 in the same way, and are formed, as shown by the dotted lines 0in Fig. 1, so as to come nearly together at the top and lead into .theregister D, Fig. 1. The pipes thus arranged? are exposed throughouttheir whole extent, so that the air will be more thoroughly and quicklyheated than when the flues are formed in the front plate or frame,while, to a degree, they screen the frame and.

prevent it from becoming too hot. (I d are openings at the lower part ofthe stove to receive the water-pans d. (Shown in Fig. 3.)

The letters d represent openings or registers through the sides of thecase or plate B,

down through the plate 0 at E, Fig. 6, and to or near the bottom of thestove, where it terminates in an elbow, provided with a dam per. 6.

In Fig. 5, f shows a supplementary grate, which is placed in an openingin the base-plate below the fire-grate, in a position where it may beconvenientlyreached by an ordinary poker to sift the ashes, the damperin the dust-pipe being opened during the operation, so as to prevent thedust of the ashes from coming out into the room. By placing the damper eat the bottom of the pipe E, instead of at the top, as usual, the returnof dust to the room after the damper is closed is prevented.

G represents the fire box. It is formed of two pieces, as shown at G G,Figs. 6 and 7, so that it can be easily put in place or taken out. 9 isan outwardly-projecting flange at the top, and 9 an inwardly-projectingflange near the bottom, and w a side flange, which flanges support thefire-brick and impart rigidity to the pot, the flanges to also bearingagainst the frame to hold the pot in place.

Ordinary suspended fire pots, having no backing and exposed at one sideto intense heat and at the other to cold air, are apt to warp and crack,become twisted and difficult to remove, and will not permit thefire-bricks to fit closely. By dividing the fire-pot, as de scribed,each section ispermitted to expand and contract without imparting.strain to the other, so that the general shape is presen ed and crackingprevented.

I am aware that metal linings have been applied within the ordinaryfire-pots; but the latter when once warped are open to all the ob=jections stated.

The firegrate H is held in position by means of a cross-bar, h, which isput in by inserting one end into a recess in one side of the fire= box,and then moving the opposite end hori zontally into an opening, h, thenup between the projections 7L2, Fig. 4, after which a wedge, h,(shown'by dotted lines,) is inserted, as shown, thereby holding itfirmly in place, from which it may be readily released when required.

I do not here claim these features, as they will form the subject of aseparate application for a patent.

J represents the front fire-grate. It is held in place by the projectingpieces j j, and is easily removable.

K is the ordinary removable fire-grate front or cover. If desired, itmay be provided with one or more openings, K, into which mica or itsequivalent may be put, so as to render it transparent; and, if desired,an additional removable cover or front, provided with a dam per, may beused to cover the lower part.

The main pipe F and the upper portion of the pipe E are of cast-iron,and are cast in one piece, thereby insuring greater strength anddurability and rendering it gas-tight.

When the heater is used to warm an upper room besides the one in whichit isplaced, it should be set in a fire -place having flues similar tothose shown by dotted lines M M, Fig. 3, leading down from the upperroom, so as to communicate with the openings N at the bottom of theheater.

the cold air from the upper room to descend, and then return after ithas passed through the furnace and become heated, a flue provided with aregister and adapted to conduct the This arrangement allows heated airfrom thefurnace to the room being combined with it.

This invention is also adapted for use in a room where there are nofire-places, like an ordinary stove or furnace.

The space below the plate 0 forms a flue, which partly surrounds theheater and communicates with the openings N. The furnace is eitherelevated, or an opening is provided below it, so that when the ashes aresifted through the grate f, as before mentioned, they will have areceptacle to fall into.

I am aware that sifters have been arranged below the grates infire-places, and above the drawers and receptacles of stoves. "I am alsoaware that hot-air pipes have been arranged within stoves so as to beexposed on all sides to the action of the hot gases, and thatairchannels have been formed in the frames.

I claim- 1. The suspended fire-pot consisting of sections havinginwardly and outwardly projecting flanges g g and vertical flanges w, asand for the purpose set forth.

2. The bent tubes 0, extending from above the fire-pot at the rear ofbut apart from the frame and communicating with the register D, as setforth.

MICHAEL MONAMARA.

Witnesses JAMES SANGSTER, O. L. POND.

